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A study of the coarse water droplets formation in the nozzle

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F19%3A00335785" target="_blank" >RIV/68407700:21220/19:00335785 - isvavai.cz</a>

  • Result on the web

    <a href="https://doi.org/10.1051/epjconf/201921302058" target="_blank" >https://doi.org/10.1051/epjconf/201921302058</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1051/epjconf/201921302058" target="_blank" >10.1051/epjconf/201921302058</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    A study of the coarse water droplets formation in the nozzle

  • Original language description

    The paper introduces the experimental results of the droplets formation for three different aqueous solutions. The new wind tunnel was built to study water droplets atomization from liquid films at high speed flow similar to that found in steam turbines. Liquid atomization is a widely studied problem for sprays and generally in the field of aerosol research. A similar phenomenon occurs in steam turbines but mainly with undesirable effects, the formed droplets from the film (coarse droplets) have a negative effect on the reliability and efficiency of the turbines due to the erosion and corrosion by the droplets impact on the leading edges of the blades. The new wind tunnel is equipped with classical pressure and temperature measurement systems for the determination of the initial condition in the settling chamber and measurement of the static pressure along the nozzle with a known profile. The photogrammetric method and light scattering are used to measure the diameter distribution of the droplets. The liquid film is made with an aqueous solution supplied on the symmetrical aerofoil NACA 0008. Different aqueous solutions were studied for different liquid surface tension effects.

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

  • OECD FORD branch

    20303 - Thermodynamics

Result continuities

  • Project

    <a href="/en/project/GA16-20123S" target="_blank" >GA16-20123S: Two-phase flow in the high pressure wet steam turbines for the nuclear power plants</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2019

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Article name in the collection

    EFM18 – Experimental Fluid Mechanics 2018

  • ISBN

  • ISSN

    2100-014X

  • e-ISSN

    2100-014X

  • Number of pages

    4

  • Pages from-to

  • Publisher name

    EDP Sciences

  • Place of publication

    Les Ulis Cedex A

  • Event location

    Praha

  • Event date

    Nov 13, 2018

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article

    000504642200059